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Wan Y, Wang M, Ding P, Qiu Y, Guo X, Cohen Stuart M, Wang J. Robust Electrostatic-Templated Polymerization for Controllable Synthesis of Stable and Permeable Polyelectrolyte Vesicles. ACS Macro Lett 2024; 13:703-710. [PMID: 38767665 DOI: 10.1021/acsmacrolett.4c00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Polymer vesicles are of profound interest for designing delivery vehicles and nanoreactors toward a variety of biomedical and catalytic applications, yet robust synthesis of stable and permeable vesicles remains challenging. Here, we propose an electrostatic-templated polymerization that enables fabrication of polyelectrolyte vesicles with simultaneously regulated stability and permeability. In our design, cationic monomers were copolymerized with cross-linkers in the presence of a polyanionic-neutral diblock copolymer as a template. By properly choosing the block length ratio of the template, we fabricated a type of polyion complex vesicle consisting of a cross-linked cationic membrane, electrostatically assembled with the template copolymer which can be removed by sequential dissociation and separation under concentrated salt. We finally obtained stable polyelectrolyte vesicles of regulated size, membrane permeability, and response properties by tuning the synthesis factors including ionic strength, cross-linker type, and fraction as well as different monomers and concentrations. As a proof-of-concept, lipase was loaded in the designed cationic vesicles, which exhibited enhanced enzyme stability and activity. Our study has developed a novel and robust strategy for controllable synthesis of a new class of stable and permeable polymer (polyelectrolyte) vesicles that feature great potential applications as functional delivery carriers and nanoreactors.
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Affiliation(s)
- Yuting Wan
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Mingwei Wang
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Peng Ding
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Yuening Qiu
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Xuhong Guo
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Martien Cohen Stuart
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Junyou Wang
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
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Zhao H, Zhang C, Tian C, Li L, Wu B, Stuart MAC, Wang M, Zhou X, Wang J. Rational design of diblock copolymer enables efficient cytosolic protein delivery. J Colloid Interface Sci 2024; 673:722-734. [PMID: 38901362 DOI: 10.1016/j.jcis.2024.06.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/03/2024] [Accepted: 06/16/2024] [Indexed: 06/22/2024]
Abstract
Polymer-mediated cytosolic protein delivery demonstrates a promising strategy for the development of protein therapeutics. Here, we propose a new designed diblock copolymer which realizes efficient cytosolic protein delivery both in vitro and in vivo. The polymer contains one protein-binding block composed of phenylboronic acid (PBA) and N-(3-dimethylaminopropyl) (DMAP) pendant units for protein binding and endosomal escape, respectively, followed by the response to ATP enriched in the cytosol which triggers the protein release. The other block is PEG designed to improve particle size control and circulation in vivo. By optimizing the block composition, sequence and length of the copolymer, the optimal one (BP20) was identified with the binding block containing 20 units of both PBA and DMAP, randomly distributed along the chain. When mixed with proteins, the BP20 forms stable nanoparticles and mediates efficient cytosolic delivery of a wide range of proteins including enzymes, toxic proteins and CRISPR/Cas9 ribonucleoproteins (RNP), to various cell lines. The PEG block, especially when further modified with folic acid (FA), enables tumor-targeted delivery of Saporin in vivo, which significantly suppresses the tumor growth. Our results shall inspire the design of novel polymeric vehicles with robust capability for cytosolic protein delivery, which holds great potential for both biological research and therapeutic applications.
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Affiliation(s)
- Hongyang Zhao
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Chenglin Zhang
- Department of Orthopedics, Changzheng Hospital, Second Affiliated Hospital of Second Military Medical University, 415 Fengyang Road, 200003 Shanghai, People's Republic of China
| | - Chang Tian
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Lingshu Li
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Bohang Wu
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Martien A Cohen Stuart
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China
| | - Mingwei Wang
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China.
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng Hospital, Second Affiliated Hospital of Second Military Medical University, 415 Fengyang Road, 200003 Shanghai, People's Republic of China.
| | - Junyou Wang
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237 Shanghai, People's Republic of China.
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Yildirim T, Bali A, Koch M, Paul P, Latta L, Schneider-Daum N, Gallei M, Lehr CM. A New Class of Polyion Complex Vesicles (PIC-somes) to Improve Antimicrobial Activity of Tobramycin in Pseudomonas Aeruginosa Biofilms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401926. [PMID: 38829185 DOI: 10.1002/smll.202401926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/26/2024] [Indexed: 06/05/2024]
Abstract
Pseudomonas aeruginosa (PA) is a major healthcare concern due to its tolerance to antibiotics when enclosed in biofilms. Tobramycin (Tob), an effective cationic aminoglycoside antibiotic against planktonic PA, loses potency within PA biofilms due to hindered diffusion caused by interactions with anionic biofilm components. Loading Tob into nano-carriers can enhance its biofilm efficacy by shielding its charge. Polyion complex vesicles (PIC-somes) are promising nano-carriers for charged drugs, allowing higher drug loadings than liposomes and polymersomes. In this study, a new class of nano-sized PIC-somes, formed by Tob-diblock copolymer complexation is presented. This approach replaces conventional linear PEG with brush-like poly[ethylene glycol (methyl ether methacrylate)] (PEGMA) in the shell-forming block, distinguishing it from past methods. Tob paired with a block copolymer containing hydrophilic PEGMA induces micelle formation (PIC-micelles), while incorporating hydrophobic pyridyldisulfide ethyl methacrylate (PDSMA) monomer into PEGMA chains reduces shell hydrophilicity, leads to the formation of vesicles (PIC-somes). PDSMA unit incorporation enables unprecedented dynamic disulfide bond-based shell cross-linking, significantly enhancing stability under saline conditions. Neither PIC-somes nor PIC-micelles show any relevant cytotoxicity on A549, Calu-3, and dTHP-1 cells. Tob's antimicrobial efficacy against planktonic PA remains unaffected after encapsulation into PIC-somes and PIC-micelles, but its potency within PA biofilms significantly increases.
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Affiliation(s)
- Turgay Yildirim
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Aghiad Bali
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123, Saarbrücken, Germany
| | - Marcus Koch
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Pascal Paul
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Lorenz Latta
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Nicole Schneider-Daum
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Markus Gallei
- Polymer Chemistry, Saarland University, Campus C4 2, 66123, Saarbrücken, Germany
- Saarene - Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123, Saarbrücken, Germany
| | - Claus-Michael Lehr
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123, Saarbrücken, Germany
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Wang J, Lu T, Li Y, Wang J, Spruijt E. Aqueous coordination polymer complexes: From colloidal assemblies to bulk materials. Adv Colloid Interface Sci 2023; 318:102964. [PMID: 37515864 DOI: 10.1016/j.cis.2023.102964] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/19/2023] [Accepted: 07/14/2023] [Indexed: 07/31/2023]
Abstract
1-dimensional (1D) coordination polymers refer to the macromolecules that have metal ions incorporated in their pendent groups or main chain through metal-binding ligand groups. They have intrinsic advantages over traditional polymers to regulate the polymer structures and functions owing to the nature of the metal-ligand bond. Consequently, they have great potential for the development of smart and functional structures and materials and therapeutic agents. Water-soluble 1D coordination polymers and assemblies are an important subtype of coordination polymers with distinctive interests for demanding applications in aqueous systems, such as biological and medical applications. This review highlights the recent progress and research achievements in the design and use of water-soluble 1D coordination polymers and assemblies. The overview covers the design and structure control of 1D coordination polymers, their colloidal assemblies, including nanoparticles, nanofibers, micelles and vesicles, and fabricated bulk materials such as membraneless liquid condensates, security ink, hydrogel actuators, and smart fabrics. Finally, we discuss the potential applications of several of these coordination polymeric structures and materials and give an outlook on the field of aqueous coordination polymers.
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Affiliation(s)
- Jiahua Wang
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands
| | - Tiemei Lu
- Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands
| | - Yuehua Li
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Junyou Wang
- State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Evan Spruijt
- Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands.
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5
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Wu B, Tong Y, Wang J, Qiu Y, Gao Y, Cohen Stuart MA, Wang J. Hierarchical self-assembly of metal-organic supramolecular fibers with lanthanide-derived functionalities. SOFT MATTER 2023; 19:2579-2587. [PMID: 36946212 DOI: 10.1039/d3sm00084b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Achieving organized assembly structures with high complexity and adjustable functionalities is a central quest in supramolecular chemistry. In this report, we study what happens when a discotic benzene-1,3,5-tricarboxamide (BTA) ligand containing three dipicolinic acid (DPA) groups is allowed to coordinate with lanthanide (Ln) ions. A multi-BTA coordination cluster forms, which behaves as a type of "supramolecular monomer", stacking into fibers via hydrogen bonds enabled by multiple BTA cores. The fibrous morphology and size, as well as the packing unit and the process by which it grows, were investigated by light scattering measurements, luminescence spectra, TEM images and molecular simulation data. More notably, by selecting the kind of lanthanide or mixture of lanthanides that is incorporated, tunable luminescence and magnetic relaxation properties without compromising the fibrous structure can be realized. This case of hierarchical self-assembly is made possible by the special structure of our BTA-like building block, which makes non-covalent bond types that are different along the radial (coordination bonds) and axial (H-bonds) directions, respectively, each with just the right strength. Moreover, the use of lanthanide coordination leads to materials with metal-derived optical and magnetic properties. Therefore, the established approach demonstrates a novel strategy for designing and fabrication of multi-functional supramolecular materials.
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Affiliation(s)
- Bohang Wu
- East China University of Science and Technology, Department of Chemical Engineering, Meilong Road 130, 200237 Shanghai, China.
| | - Yutao Tong
- East China University of Science and Technology, Department of Chemical Engineering, Meilong Road 130, 200237 Shanghai, China.
| | - Jiahua Wang
- East China University of Science and Technology, Department of Chemical Engineering, Meilong Road 130, 200237 Shanghai, China.
| | - Yuening Qiu
- East China University of Science and Technology, Department of Chemical Engineering, Meilong Road 130, 200237 Shanghai, China.
| | - Yifan Gao
- East China University of Science and Technology, Department of Chemical Engineering, Meilong Road 130, 200237 Shanghai, China.
| | - Martien A Cohen Stuart
- East China University of Science and Technology, Department of Chemical Engineering, Meilong Road 130, 200237 Shanghai, China.
| | - Junyou Wang
- East China University of Science and Technology, Department of Chemical Engineering, Meilong Road 130, 200237 Shanghai, China.
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6
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Krieger A, Zika A, Gröhn F. Functional Nano-Objects by Electrostatic Self-Assembly: Structure, Switching, and Photocatalysis. Front Chem 2022; 9:779360. [PMID: 35359487 PMCID: PMC8961288 DOI: 10.3389/fchem.2021.779360] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/30/2021] [Indexed: 11/14/2022] Open
Abstract
The design of functional nano-objects by electrostatic self-assembly in solution signifies an emerging field with great potential. More specifically, the targeted combination of electrostatic interaction with other effects and interactions, such as the positioning of charges on stiff building blocks, the use of additional amphiphilic, π−π stacking building blocks, or polyelectrolytes with certain architectures, have recently promulgated electrostatic self-assembly to a principle for versatile defined structure formation. A large variety of architectures from spheres over rods and hollow spheres to networks in the size range of a few tenths to a few hundred nanometers can be formed. This review discusses the state-of-the-art of different approaches of nano-object formation by electrostatic self-assembly against the backdrop of corresponding solid materials and assemblies formed by other non-covalent interactions. In this regard, particularly promising is the facile formation of triggerable structures, i.e. size and shape switching through light, as well as the use of electrostatically assembled nano-objects for improved photocatalysis and the possible solar energy conversion in the future. Lately, this new field is eliciting an increasing amount of understanding; insights and limitations thereof are addressed in this article. Special emphasis is placed on the interconnection of molecular building block structures and the resulting nanoscale architecture via the key of thermodynamics.
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Huang J, Gao Y, Ding P, Guo X, Cohen Stuart MA, Wang J. Rational Polyelectrolyte Design Enables Multifunctional Polyion Complex Vesicles. ACS APPLIED MATERIALS & INTERFACES 2022; 14:6048-6056. [PMID: 35073696 DOI: 10.1021/acsami.1c23244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polyion complex (PIC) vesicles prepared by polyelectrolyte assembly have attracted extensive attention as distinctive carriers and nanoreactors, particularly for biological cargoes. However, the constrained regulation of their structure and functionality at this stage hinder the application of PIC vesicles. Herein, we design a new asymmetric assembly system, namely cationic-neutral-cationic triblock copolymer co-assembly with a supramolecular ionic coordination polymer. The former creates poly(ethylene oxide) (PEO) loops upon complexation, which are favorable for vesicle fabrication, while the coordination polyelectrolyte composed of metal ions and a dipicolinic acid (DPA)-based bis-ligand features well-defined functionalities depending on the incorporated metal ions. Thus, the rational combination allows controlled fabrication of PIC vesicles with a modulated structure and functionalities. Moreover, the encapsulation and release of hydrophilic dextran based on different PIC vesicles has been realized. Our design integrates the advantages of both triblock and coordination polymers, and therefore demonstrates a novel strategy for harmonious regulation of the structure and functionality of PIC vesicles. The revealed findings and achieved properties shall be inspirational for developing functional PIC vesicles and boosting their applications towards demand encapsulation and delivery.
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Affiliation(s)
- Jianan Huang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Yifan Gao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Peng Ding
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Xuhong Guo
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Martien A Cohen Stuart
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Junyou Wang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
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Huang J, Li C, Gao Y, Cai Y, Guo X, Cohen Stuart MA, Wang J. Dendrimer-Based Polyion Complex Vesicles: Loops Make Loose. Macromol Rapid Commun 2021; 43:e2100594. [PMID: 34699665 DOI: 10.1002/marc.202100594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/10/2021] [Indexed: 01/24/2023]
Abstract
Associations of amphiphiles assume their various morphologies according to the so-called packing parameter under thermodynamic control. However, one may raise the question of whether polymers can always relax fast enough to obey thermodynamic control, and how this may be checked. Here, a case of polyion complex (PIC) assemblies where the morphology appears to be subject to kinetic control is discussed. Poly (ethylene oxide)-b-(styrene sulfonate) block copolymers are combined with cationic PAMAM dendrimers of various generations (2-7). The PEO-PSS diblocks, and the corresponding PSS-PEO-PSS triblocks should have nearly identical packing parameters, but surprisingly creat different assemblies, namely core-shell micelles and vesicles, respectively. Moreover, the micelles are very stable against added salt, whereas the vesicles are not only much more sensitive to added salt, but also appear to exchange matter on relevant time scales. The small and largely quenched early-stage precursor complexes are responsible for the morphological and dynamic differences, implying that kinetic control may also be a way to obtain particles with well-defined and useful properties. The exciting new finding that triblocks produce more "active" vesicles will hopefully trigger the exploration of more pathways, and so learn how to tune PICsomes toward specific applications.
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Affiliation(s)
- Jianan Huang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Chendan Li
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Yifan Gao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Ying Cai
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Xuhong Guo
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Martien A Cohen Stuart
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
| | - Junyou Wang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
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Hierarchical polyion complex vesicles from PAMAM dendrimers. J Colloid Interface Sci 2021; 606:307-316. [PMID: 34390996 DOI: 10.1016/j.jcis.2021.07.140] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/18/2021] [Accepted: 07/27/2021] [Indexed: 12/12/2022]
Abstract
Hierarchical dendrimer-based polyion complex (PIC) vesicles with multiple compartments have attracted considerable attention as functional delivery vehicles and nano-carriers. Formation of these vesicles relies on the electrostatic assembly of asymmetric polyelectrolytes, namely branched dendrimers with linear polyion-neutral diblock copolymers. However, successful incorporation of dendrimers in vesicle lamellae is challenging due to the compact structure of dendrimers, and therefore, vesicles reported so far are prepared mainly with low generation dendrimers which lack the cavity required for carrier functions. Here, we present a new assembly combination of amine-terminated dendrimer polyamidoamine (PAMAM) with polyion-neutral diblock copolymer poly (styrene sulphonate-b-ethylene oxide) (PSS-b-PEO). The strong charge interaction between the building blocks leads to stable and well-defined PIC vesicles that can tolerate not only different PSS block lengths but, more importantly, also different dendrimer generations from 2 to 7. As a consequence, high generation dendrimers with a cavity can be packed in the vesicle wall, and one obtains hierarchical PIC vesicles with multiple compartments, namely the dendrimer cavity for loading small hydrophobic cargo, and the vesicle lumen for encapsulating hydrophilic macromolecules. Our study demonstrates that combining proper building blocks enables to manipulate the charge interactions, which is essential for controlling the dendrimer packing and the formation of PIC vesicles. These findings should be helpful for understanding the assembly of asymmetric (linear / branched) polyelectrolyte complexes, as well as for designing new hierarchical PIC vesicles for controlled delivery of multiple active substances.
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Miao Y, Niu X, Wu A, Wu M, Jin S, Zhang P, Zhao W, Zhao X. Metallic Oxide-Induced Self-Assembly of Block Copolymers to Form Polymeric Hybrid Micelles with Tunable Stability for Tumor Microenvironment-Responsive Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2021; 13:32753-32762. [PMID: 34236174 DOI: 10.1021/acsami.1c07168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Since block copolymers are able to self-assemble into various polymeric architectures, it is intriguing to explore a unique self-assembly strategy for polymers. Two different metallic oxides [manganese dioxide (MnO2) and zinc oxide (ZnO)] are displayed herein to demonstrate this self-assembly mechanism of polymers. In situ generation of metallic oxides induces self-assembly of block copolymers to form polymeric hybrid micelles with tunable stability in aqueous solutions. These final ZnO-cross-linked polymeric micelles exhibited a high drug loading capacity of 0.41 mg mg-1 toward doxorubicin (DOX), whereas DOX-loaded ZnO-cross-linked polymeric micelles could be broken down into Zn2+ and polymer scraps, which facilitated drug release in tumor microenvironments. Both in vitro and in vivo investigations showed that the drug-loaded ZnO-cross-linked polymeric micelles effectively suppressed tumor growth. Accordingly, the present study demonstrates a novel strategy of polymer self-assembly for fabricating polymeric architectures that can potentially provide insight for developing other polymeric architectures.
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Affiliation(s)
- Yalei Miao
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xiaoshuang Niu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Aijun Wu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Menghan Wu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Shengzhe Jin
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Panke Zhang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Wenshan Zhao
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xubo Zhao
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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11
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Li Z, Liu X, Wang G, Li B, Chen H, Li H, Zhao Y. Photoresponsive supramolecular coordination polyelectrolyte as smart anticounterfeiting inks. Nat Commun 2021; 12:1363. [PMID: 33649315 PMCID: PMC7921134 DOI: 10.1038/s41467-021-21677-4] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 02/08/2021] [Indexed: 11/09/2022] Open
Abstract
While photoluminescence printing is a widely applied anticounterfeiting technique, there are still challenges in developing new generation anticounterfeiting materials with high security. Here we report the construction of a photoresponsive supramolecular coordination polyelectrolyte (SCP) through hierarchical self-assembly of lanthanide ion, bis-ligand and diarylethene unit, driven by metal-ligand coordination and ionic interaction. Owing to the conformation-dependent photochromic fluorescence resonance energy transfer between the lanthanide donor and diarylethene acceptor, the ring-closure/ring-opening isomerization of the diarylethene unit leads to a photoreversible luminescence on/off switch in the SCP. The SCP is then utilized as security ink to print various patterns, through which photoreversible multiple information patterns with visible/invisible transformations are realized by simply alternating the irradiation with UV and visible light. This work demonstrates the possibility of developing a new class of smart anticounterfeiting materials, which could be operated in a noninvasive manner with a higher level of security.
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Affiliation(s)
- Zhiqiang Li
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P. R. China.
| | - Xiao Liu
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P. R. China
| | - Guannan Wang
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P. R. China
| | - Bin Li
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P. R. China
| | - Hongzhong Chen
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
| | - Huanrong Li
- Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, P. R. China.
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore.
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Araste F, Aliabadi A, Abnous K, Taghdisi SM, Ramezani M, Alibolandi M. Self-assembled polymeric vesicles: Focus on polymersomes in cancer treatment. J Control Release 2021; 330:502-528. [DOI: 10.1016/j.jconrel.2020.12.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/16/2022]
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13
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Zhang R, Han Y, Zhang L, Chen Q, Ding M, Shi T. Migration and deformation of polyelectrolyte vesicle through a pore in electric field. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125560] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Ding P, Chen L, Wei C, Zhou W, Li C, Wang J, Wang M, Guo X, Cohen Stuart MA, Wang J. Efficient Synthesis of Stable Polyelectrolyte Complex Nanoparticles by Electrostatic Assembly Directed Polymerization. Macromol Rapid Commun 2020; 42:e2000635. [PMID: 33368740 DOI: 10.1002/marc.202000635] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/08/2020] [Indexed: 12/11/2022]
Abstract
Polyelectrolyte complex nanoparticles with integrated advances of coacervate complexes and nanomaterials have attracted considerable attention as soft templates and functional nano-carriers. Herein, a facile and robust strategy, namely electrostatic assembly directed polymerization (EADP), for efficient and scalable preparation of stable coacervate nanoparticles is presented. With homo-polyelectrolyte PAA (polyacrylic acid) as template and out of charge stoichiometry, the cationic monomers are polymerized together with cross-linkers, which creates coacervate nanoparticles featuring high stability against salt through one-pot synthesis. The particle size can be tuned by varying the cross-linker amount and salt concentrations during the polymerization and the composition of nanoparticles, as well as the corresponding properties can be regulated by combining different charged blocks from both strong and weak ionic monomers. The strategy can tolerate both high monomer concentrations and increased volume of up to l L, which is favorable for scaled-up preparations. Moreover, the coacervate nanoparticles can be freeze-dried to produce a product in powder form, which can be redispersed without any effect on the particle size and size distribution. Finally, the obtained nanoparticles loaded with enzyme and Au nanoparticles exhibit enhanced catalytic performance, demonstrating a great potential for exploring various applications of coacervate particles as soft and functional nano-carriers.
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Affiliation(s)
- Peng Ding
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Lusha Chen
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Cheng Wei
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Wenjuan Zhou
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Chendan Li
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Jiahua Wang
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Mingwei Wang
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Xuhong Guo
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Martien A Cohen Stuart
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Junyou Wang
- State-Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
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15
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Chen M, Peng C, Su Y, Chen X, Zhang Y, Wang Y, Peng J, Sun Q, Liu X, Huang W. A General Strategy for Hollow Metal‐Phytate Coordination Complex Micropolyhedra Enabled by Cation Exchange. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005892] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Meiling Chen
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Chenxi Peng
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Yaoquan Su
- State Key Laboratory of Natural Medicines School of Basic Medical Sciences and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Xue Chen
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Yuezhou Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Yu Wang
- SZU-NUS Collaborative Innovation Center ICL-2DMOST Institute of Microscale Optoelectronics Shenzhen University Shenzhen 518060 China
| | - Juanjuan Peng
- State Key Laboratory of Natural Medicines School of Basic Medical Sciences and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Qiang Sun
- Center for Functional Materials NUS (Suzhou) Research Institute Suzhou Jiangsu 215123 China
| | - Xiaowang Liu
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
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16
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Chen M, Peng C, Su Y, Chen X, Zhang Y, Wang Y, Peng J, Sun Q, Liu X, Huang W. A General Strategy for Hollow Metal‐Phytate Coordination Complex Micropolyhedra Enabled by Cation Exchange. Angew Chem Int Ed Engl 2020; 59:20988-20995. [DOI: 10.1002/anie.202005892] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 01/17/2023]
Affiliation(s)
- Meiling Chen
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Chenxi Peng
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Yaoquan Su
- State Key Laboratory of Natural Medicines School of Basic Medical Sciences and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Xue Chen
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Yuezhou Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Yu Wang
- SZU-NUS Collaborative Innovation Center ICL-2DMOST Institute of Microscale Optoelectronics Shenzhen University Shenzhen 518060 China
| | - Juanjuan Peng
- State Key Laboratory of Natural Medicines School of Basic Medical Sciences and Clinical Pharmacy China Pharmaceutical University Nanjing Jiangsu 211198 China
| | - Qiang Sun
- Center for Functional Materials NUS (Suzhou) Research Institute Suzhou Jiangsu 215123 China
| | - Xiaowang Liu
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLoFE) Shaanxi Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Flexible Electronics Xi'an Key Laboratory of Biomedical Materials & Engineering Xi'an Institute of Flexible Electronics Institute of Flexible Electronics (IFE) Northwestern Polytechnical University Xi'an 710072 Shaanxi China
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17
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Magana JR, Sproncken CCM, Voets IK. On Complex Coacervate Core Micelles: Structure-Function Perspectives. Polymers (Basel) 2020; 12:E1953. [PMID: 32872312 PMCID: PMC7565781 DOI: 10.3390/polym12091953] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 12/31/2022] Open
Abstract
The co-assembly of ionic-neutral block copolymers with oppositely charged species produces nanometric colloidal complexes, known, among other names, as complex coacervates core micelles (C3Ms). C3Ms are of widespread interest in nanomedicine for controlled delivery and release, whilst research activity into other application areas, such as gelation, catalysis, nanoparticle synthesis, and sensing, is increasing. In this review, we discuss recent studies on the functional roles that C3Ms can fulfil in these and other fields, focusing on emerging structure-function relations and remaining knowledge gaps.
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Affiliation(s)
| | | | - Ilja K. Voets
- Laboratory of Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands; (J.R.M.); (C.C.M.S.)
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18
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Qiu Z, Huang J, Liu L, Li C, Cohen Stuart MA, Wang J. Effects of pH on the Formation of PIC Micelles from PAMAM Dendrimers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:8367-8374. [PMID: 32610910 DOI: 10.1021/acs.langmuir.0c00598] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dendrimer-based PIC micelles are novel nanostructures from the assembly of dendrimers with polyion-neutral diblock copolymers. Because of the branched and three-dimensional structure of dendrimers, understanding the electrostatic assembly is challenging yet essential for manipulating the formation and property of the PIC micelles. Herein, we present the pH effects on the assembly of amine-terminated PAMAM dendrimers with PSS92-b-PEO113 diblock copolymers. The step-wise protonation of primary and tertiary amine groups of PAMAM allows us to manipulate the number of the positive charges by tuning pH. We find that the assembly based on the surface charges of PAMAM from G2 to G7 at pH 7 leads to well-defined micelles with high stability against salt. At pH 3, both the interior and surface charges contribute to the assembly, and the formed micelles are sensitive to ionic strength, namely, increasing salt concentration results in the formation of elongated (G2-G5) or bigger (G7) aggregates. Our study reveals the pH manipulation on the assembly of PAMAM dendrimers with linear polyelectrolytes and displays new findings that shall be helpful for understanding the assembly of asymmetric polyelectrolytes, as well as for designing new PIC micelles and functional soft nanocarriers.
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Affiliation(s)
- Zhaomei Qiu
- State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Jianan Huang
- State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Lei Liu
- State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Chendan Li
- State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Martien A Cohen Stuart
- State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Junyou Wang
- State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
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19
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Ye Z, Sun S, Wu P. Distinct Cation-Anion Interactions in the UCST and LCST Behavior of Polyelectrolyte Complex Aqueous Solutions. ACS Macro Lett 2020; 9:974-979. [PMID: 35648610 DOI: 10.1021/acsmacrolett.0c00303] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polyelectrolyte complexes (PECs) are recently observed to possess diversified thermoresponsive phase transition behaviors in aqueous solutions. Herein, by adjusting the initial polymer concentrations (Cpi) of poly(styrenesulfonate) (PSS)/poly(diallyldimethylammonium) (PDADMA) PEC in the same saline solution, in addition to previously reported lower critical solution temperature (LCST), we experimentally observed the upper critical solution temperature (UCST)-type phase transition behavior of PSS/PDADMA PECs at a lower polymer concentration. As elucidated by temperature-dependent Raman spectroscopy and two-dimensional correlation analysis, at temperatures lower than UCST, more hydrophobic polyelectrolyte chains lead to a high proportion of contact ion pairs (CIPs), contributing to UCST-type solid-liquid phase transition; however, at higher concentrations of PEC, the less hydrophobic polyelectrolyte chains correspond to a higher proportion of solvent-separated ion pairs (SIPs), which enables the occurrence of LCST-type liquid-liquid phase transition. With the spectroscopic indicator of CIPs/SIPs peak ratio and monitoring the hydration state of polymer chains, the complex interplays of PSS/PDADMA PECs are hereby interpreted at the molecular level, which lays the mechanistic foundation for designing other thermoresponsive PEC assemblies.
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Affiliation(s)
- Zhangxin Ye
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China
| | - Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, and Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
| | - Peiyi Wu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, and Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
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20
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Wei C, Ding P, Nie X, Cohen Stuart MA, Wang J. Europium based coordination polyelectrolytes enable core-shell-corona micelles as luminescent probes. SOFT MATTER 2020; 16:5727-5733. [PMID: 32525173 DOI: 10.1039/d0sm00598c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Core-shell-corona (CSC) micelles have multiple layers, which can serve as separate compartments. This property allows them to combine multiple functionalities in a single nanoparticle, with obvious application potential. Here, we propose a new type of CSC micelles with an apolar core and a polyelectrolyte complex shell incorporating coordination polymers. We obtain these particles by using a poly(styrene)-b-poly(vinyl pyridine)-b-poly(ethylene oxide) (PS-b-PVP-b-PEO) triblock copolymer with quaternized PVP blocks. This polymer leads to well-defined CSC micelles with a cationic shell, which allows us to entrap anionic coordination polymers without disturbing the micellar structure. Useful properties can be imported in this way, e.g., europium (Eu)-based coordination polymers endow the CSC micelles with strong luminescence. Moreover, copper ions (Cu2+) can quench the luminescence because they disturb the Eu-ligand coordination. Upon adding sulfide ions (S2-), copper ions precipitate as CuS and the Eu-ligand bond as well as the corresponding luminescence are restored. This effect is highly specific for Cu2+ and S2-: other cations or anions hardly interfere with this "on-off-on" luminescence response towards Cu2+ and S2-, demonstrating the selectivity of these CSC micelles as detectors of copper and sulfide ions.
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Affiliation(s)
- Cheng Wei
- State Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China.
| | - Peng Ding
- State Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China.
| | - Xiran Nie
- State Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China.
| | - Martien A Cohen Stuart
- State Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China.
| | - Junyou Wang
- State Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China.
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21
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Zartner L, Muthwill MS, Dinu IA, Schoenenberger CA, Palivan CG. The rise of bio-inspired polymer compartments responding to pathology-related signals. J Mater Chem B 2020; 8:6252-6270. [PMID: 32452509 DOI: 10.1039/d0tb00475h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Self-organized nano- and microscale polymer compartments such as polymersomes, giant unilamellar vesicles (GUVs), polyion complex vesicles (PICsomes) and layer-by-layer (LbL) capsules have increasing potential in many sensing applications. Besides modifying the physicochemical properties of the corresponding polymer building blocks, the versatility of these compartments can be markedly expanded by biomolecules that endow the nanomaterials with specific molecular and cellular functions. In this review, we focus on polymer-based compartments that preserve their structure, and highlight the key role they play in the field of medical diagnostics: first, the self-assembling abilities that result in preferred architectures are presented for a broad range of polymers. In the following, we describe different strategies for sensing disease-related signals (pH-change, reductive conditions, and presence of ions or biomolecules) by polymer compartments that exhibit stimuli-responsiveness. In particular, we distinguish between the stimulus-sensitivity contributed by the polymer itself or by additional compounds embedded in the compartments in different sensing systems. We then address necessary properties of sensing polymeric compartments, such as the enhancement of their stability and biocompatibility, or the targeting ability, that open up new perspectives for diagnostic applications.
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Affiliation(s)
- Luisa Zartner
- Chemistry Department, University of Basel, Mattenstr. 24a, BPR1096, Basel, Switzerland.
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22
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Wang J, Guan W, Tan T, Saggiomo V, Cohen Stuart MA, Velders AH. Response of metal-coordination-based polyelectrolyte complex micelles to added ligands and metals. SOFT MATTER 2020; 16:2953-2960. [PMID: 32167103 DOI: 10.1039/c9sm02386k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polyelectrolyte complex based micelles have attracted significant attention due to their potential regarding bio-applications. Although the morphology and functions have been studied extensively, dynamic properties, particularly component exchange with other surrounding molecules, have remained elusive to date. Here, we show how micelles based on metal-ligand coordination complex coacervate-core micelles (M-C3Ms) respond to addition of extra ligand and metal ions. The micelles are prepared from a polycationic-neutral diblock copolymer and an anionic coordination polyelectrolyte, which is obtained by coordination between metal ions (lanthanides Ln3+ and Zn2+) and a bis-ligand (LEO) containing two dipicolinic acid (DPA) groups connected by a tetra-ethylene oxide spacer (4EO). Our findings show that the bis-ligand LEO is essential for the growth of coordination polymers and consequently the formation of micelles, leading to equilibrium structures with the same micellar composition and structure independent of the order of mixing. In other words, adding single DPA has no effect on the formed M-C3Ms. As for metal exchange, we find that added Zn2+ can replace some of the Ln3+ from Ln-C3Ms, leading to a hybrid coordination structure with both Ln3+ and Zn2+. We find that component exchange occurs in these coordination polyelectrolyte micelles, but it is more favorable in the direction of replacing the weak binding components with strong ones. Hence, the designed M-C3Ms based on the strong binding components, such as Ln-C3Ms, shall be relatively stable in biological surroundings, paving the way for the application of such particles as bio-imaging probes.
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Affiliation(s)
- Junyou Wang
- State Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China.
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23
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Regulating vesicle bilayer permeability and selectivity via stimuli-triggered polymersome-to-PICsome transition. Nat Commun 2020; 11:1524. [PMID: 32251282 PMCID: PMC7090076 DOI: 10.1038/s41467-020-15304-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 02/28/2020] [Indexed: 12/26/2022] Open
Abstract
Compared to liposomes, polymersomes of block copolymers (BCPs) possess enhanced stability, along with compromised bilayer permeability. Though polyion complex vesicles (PICsomes) from oppositely charged block polyelectrolytes possess semipermeable bilayers, they are unstable towards physiologically relevant ionic strength and temperature; moreover, permselectivity tuning of PICsomes has remained a challenge. Starting from a single component diblock or triblock precursor, we solve this dilemma by stimuli-triggered chemical reactions within pre-organized BCP vesicles, actuating in situ polymersome-to-PICsome transition and achieving molecular size-selective cargo release at tunable rates. UV light and reductive milieu were utilized to trigger carboxyl decaging and generate ion pairs within hydrophobic polymersome bilayers containing tertiary amines. Contrary to conventional PICsomes, in situ generated ones are highly stable towards extreme pH range (pH 2-12), ionic strength (~3 M NaCl), and elevated temperature (70 °C) due to multivalent ion-pair interactions at high local concentration and cooperative hydrogen bonding interactions of pre-organized carbamate linkages.
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